Improvement in rotary churns



. the whole is evenly balanced.

UNITED STATES ?A TENT 'Orrron JOHN MGDERMAID, OF BOOK FORD, ILLINOIS.

IMPROVEMENT IN R OTARY CHURNS.

Specification forming'part of Letters Patent No. 183,585, dated October 24, 1876; application filed June 24, 1876.

To all, whom it may concern .Be it known that I, JOHN MGDERMAID, of Rockford, in the county of Winnebago and State of Illinois, have invented a new and useful Improvement in Ghurns; and I dohereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings and to the letters of reference marked thereon.

Figure l is a perspective view of the churn, with one side broken away, showing the beaters within. Fig. 2 is the cover detached from the head, and Fig. '3 is a top view of the head with the cover removed.

Similar letters of reference denote corresponding parts in all the figures.

The object of the invention is to provide a revolving and barrel-shaped churn with secure heads, and still have a suitable openingfor the admission of thecream or other fluid; and the churn consists of asolid head of the usual form, which is designated the bottom. The other or top head is made of metal, with an opening through the center, and is secured in place by having the periphery enter the groove made with the coopers croze, and held in position by hoops in the usual manner. It further consists of a peculiar-shaped removable cover made of any suitable material, either of metal or wood, or both combined, and having a handle attached by which, when the same is secured to the body, the churn can be lifted from the frame and carried from place to place, as may be desired. It still further consists of longitudinal beaters or wooden bars, having each of their ends resting against the upper and lower heads, and secured in a position to give space between the said bars, and the inner side of the churn-body, for the purpose of breaking the cream, and to assist in separating the globules of butter.from the milk, all of which will be hereinafter explained.

A is the churn-body, having journals a a secured to the churn-body on opposite sides,

near the longitudinal center, so that when in working position, before filling with cream, The journal a is provided with a crank, 12, by means of which a revolution end over end may be given the churn. B is the cover, having a handle, B

by which the cover can be removed, or, when ried. This cover is provided with packing beon its periphery, by which, in connection with securing-bolts, the said cover can be fastened to the open head. 0 is a ring which enters within a groove such as is ordinarily made for the reception of the barrel-head, and is preferably made of metal; but wood may be used. 0 is an opening, circular in form, made in the head, which forms the ring by the said opening before this part is made a part of the churn by being secured in the aforesaid groove. This opening is forfilling and discharging purposes. D D are the thumb-nuts upon the screw-thread bolts D, and by which, in connection with the ears B the cover B is fastened to the ring or head 0. E E are beaters or bars placed inside of the churn, flush With the opening O,,and running the entire length of the body from head to head, and secured to the same in such manner that they can be readily removed for cleaning or other purposes. These heaters serve to break and agitate the cream more fully than is done by the even surface of the body when the same is revolved. F is a hookfastening which hooks into suitable eyes secured to the body, and by which the churn can be secured in a vertical position when it is desired to either fill or empty the same. G is a plug or stopper to the vent-hole, by which the gaseous matter is allowed to escape, which "forms during the process of churning, and it is also used for drawing the buttermilk or other fluid from the churn, as may be desired. H H are uprights of the frame-Work, upon which the churn is mounted. I I are the supporting-sills, to-which the said uprights are secured, and J the cross-bar uniting the same together in the usual manner.

The operation is as follows: When the churning is to be .done the barrel is, by the handle on the cover, raised and placed in position, with the journals resting inthe boxes or bear- .ings in the uprights, and, when locked in position by the hook, the thumb-nuts are loosened, the cover by its handle is turned around snfficiently far for the ears to clear the thumbnuts, when it can be lifted off, and the cream secured in position, the whole body can be cartween it and the open head upon which it rests, which prevents leakage when in use. It is also further provided with hook-shaped ears B uplooked and the cover removed,,as well as the 1 contents.

Having now described my invention, what I desire to secure by Letters Patent is-- 1. The combination of the churn-body A the open head 0 secured to the body as described, provided with the eover B, having the handleB for removing and carrying purposes,- substantially as described.

2'; flihe cover Byprovidedi with cars 13, in combination with thenheeldhavingi the o'pening 0, screw-nuts D, and screw-bolts D, all

arrangedand operating substantially as shown a and described.

3. In a revolving barrel-shaped churn, having one solid head and one head with an opening, as shown, the removable longitudinal bars or beaters Emrr-anged and operating substan tially as described, and for the purpose set forth.

This specification signed and witnessed this 14th day of April, 1876.

JOHN MGDERMAID.

Witnesses:

G. W. FORD, CHARLES S. FORD. 

